diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2008-07-05 10:02:51 +0200 |
|---|---|---|
| committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2008-07-05 10:02:51 +0200 |
| commit | 4bc256501a159abc7e9fee43f63c68894f6a11d8 (patch) | |
| tree | 934b9da94e0dfb720556d24004399784bbe8a8d7 /include/asm-arm | |
| parent | d0f349fbce2905607e0473d2358f97f48866e52c (diff) | |
MXC: add debug-macro.S for mxc
This patch adds debug-macro.S for arch-mxc
Disadvantage: Due to the board specific UART definition, these macros (and
compile time) will fail for multi board kernels.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-mxc/board-mx31ads.h | 5 | ||||
| -rw-r--r-- | include/asm-arm/arch-mxc/debug-macro.S | 38 |
2 files changed, 43 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mxc/board-mx31ads.h b/include/asm-arm/arch-mxc/board-mx31ads.h index 8590127760a..1bc6fb0f9a8 100644 --- a/include/asm-arm/arch-mxc/board-mx31ads.h +++ b/include/asm-arm/arch-mxc/board-mx31ads.h @@ -109,4 +109,9 @@ #define MXC_MAX_EXP_IO_LINES 16 +/* mandatory for CONFIG_LL_DEBUG */ + +#define MXC_LL_UART_PADDR UART1_BASE_ADDR +#define MXC_LL_UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR) + #endif /* __ASM_ARCH_MXC_BOARD_MX31ADS_H__ */ diff --git a/include/asm-arm/arch-mxc/debug-macro.S b/include/asm-arm/arch-mxc/debug-macro.S new file mode 100644 index 00000000000..34befbb2ea4 --- /dev/null +++ b/include/asm-arm/arch-mxc/debug-macro.S @@ -0,0 +1,38 @@ +/* linux/include/asm-arm/arch-imx/debug-macro.S + * + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <asm/arch/hardware.h> + +#ifdef CONFIG_MACH_MX31ADS +#include <asm/arch/board-mx31ads.h> +#endif + + .macro addruart,rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + ldreq \rx, =MXC_LL_UART_PADDR @ physical + ldrne \rx, =MXC_LL_UART_VADDR @ virtual + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #0x40] @ TXDATA + .endm + + .macro waituart,rd,rx + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #0x98] @ SR2 + tst \rd, #1 << 3 @ TXDC + beq 1002b @ wait until transmit done + .endm |